237 lines
8.3 KiB
C++
237 lines
8.3 KiB
C++
/****************************************************************************
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**
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** Copyright (C) 2013 Digia Plc and/or its subsidiary(-ies).
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** Contact: http://www.qt-project.org/legal
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**
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** This file is part of the test suite of the Qt Toolkit.
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**
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** $QT_BEGIN_LICENSE:LGPL$
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** Commercial License Usage
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** Licensees holding valid commercial Qt licenses may use this file in
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** accordance with the commercial license agreement provided with the
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** Software or, alternatively, in accordance with the terms contained in
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** a written agreement between you and Digia. For licensing terms and
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** conditions see http://qt.digia.com/licensing. For further information
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** use the contact form at http://qt.digia.com/contact-us.
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**
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** GNU Lesser General Public License Usage
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** Alternatively, this file may be used under the terms of the GNU Lesser
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** General Public License version 2.1 as published by the Free Software
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** Foundation and appearing in the file LICENSE.LGPL included in the
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** packaging of this file. Please review the following information to
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** ensure the GNU Lesser General Public License version 2.1 requirements
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** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
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**
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** In addition, as a special exception, Digia gives you certain additional
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** rights. These rights are described in the Digia Qt LGPL Exception
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** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
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**
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** GNU General Public License Usage
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** Alternatively, this file may be used under the terms of the GNU
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** General Public License version 3.0 as published by the Free Software
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** Foundation and appearing in the file LICENSE.GPL included in the
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** packaging of this file. Please review the following information to
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** ensure the GNU General Public License version 3.0 requirements will be
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** met: http://www.gnu.org/copyleft/gpl.html.
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**
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**
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** $QT_END_LICENSE$
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**
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****************************************************************************/
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#include <qtest.h>
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#include <QtQuick>
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#include <private/qsgcontext_p.h>
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#include <QtQml>
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class tst_SceneGraph : public QObject
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{
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Q_OBJECT
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private slots:
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void manyWindows_data();
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void manyWindows();
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};
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template <typename T> class ScopedList : public QList<T> {
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public:
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~ScopedList() { qDeleteAll(*this); }
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};
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QQuickView *createView(const QString &file, QWindow *parent = 0, int x = -1, int y = -1, int w = -1, int h = -1)
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{
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QQuickView *view = new QQuickView(parent);
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view->setSource(QUrl::fromLocalFile("data/" + file));
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if (x >= 0 && y >= 0) view->setPosition(x, y);
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if (w >= 0 && h >= 0) view->resize(w, h);
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view->show();
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return view;
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}
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QImage showAndGrab(const QString &file, int w, int h)
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{
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QQuickView view;
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view.setSource(QUrl::fromLocalFile(QStringLiteral("data/") + file));
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if (w >= 0 && h >= 0)
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view.resize(w, h);
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view.create();
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return view.grabWindow();
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}
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// Assumes the images are opaque white...
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bool containsSomethingOtherThanWhite(const QImage &image)
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{
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Q_ASSERT(image.format() == QImage::Format_ARGB32_Premultiplied
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|| image.format() == QImage::Format_RGB32);
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int w = image.width();
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int h = image.height();
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for (int y=0; y<h; ++y) {
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const uint *pixels = (const uint *) image.constScanLine(y);
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for (int x=0; x<w; ++x)
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if (pixels[x] != 0xffffffff)
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return true;
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}
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return false;
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}
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// When running on native Nvidia graphics cards on linux, the
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// distance field glyph pixels have a measurable, but not visible
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// pixel error. Use a custom compare function to avoid
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//
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// This was GT-216 with the ubuntu "nvidia-319" driver package.
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// llvmpipe does not show the same issue.
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//
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bool compareImages(const QImage &ia, const QImage &ib)
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{
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if (ia.size() != ib.size())
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qDebug() << "images are of different size" << ia.size() << ib.size();
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Q_ASSERT(ia.size() == ib.size());
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Q_ASSERT(ia.format() == ib.format());
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int w = ia.width();
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int h = ia.height();
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const int tolerance = 1;
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for (int y=0; y<h; ++y) {
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const uint *as= (const uint *) ia.constScanLine(y);
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const uint *bs= (const uint *) ib.constScanLine(y);
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for (int x=0; x<w; ++x) {
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uint a = as[x];
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uint b = bs[x];
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// No tolerance for error in the alpha.
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if ((a & 0xff000000) != (b & 0xff000000))
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return false;
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if (qAbs(qRed(a) - qRed(b)) > tolerance)
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return false;
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if (qAbs(qRed(a) - qRed(b)) > tolerance)
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return false;
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if (qAbs(qRed(a) - qRed(b)) > tolerance)
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return false;
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}
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}
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return true;
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}
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void tst_SceneGraph::manyWindows_data()
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{
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QTest::addColumn<QString>("file");
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QTest::addColumn<bool>("toplevel");
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QTest::addColumn<bool>("shared");
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QTest::newRow("image,toplevel") << QStringLiteral("manyWindows_image.qml") << true << false;
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QTest::newRow("image,subwindow") << QStringLiteral("manyWindows_image.qml") << false << false;
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QTest::newRow("dftext,toplevel") << QStringLiteral("manyWindows_dftext.qml") << true << false;
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QTest::newRow("dftext,subwindow") << QStringLiteral("manyWindows_dftext.qml") << false << false;
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QTest::newRow("ntext,toplevel") << QStringLiteral("manyWindows_ntext.qml") << true << false;
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QTest::newRow("ntext,subwindow") << QStringLiteral("manyWindows_ntext.qml") << false << false;
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QTest::newRow("rects,toplevel") << QStringLiteral("manyWindows_rects.qml") << true << false;
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QTest::newRow("rects,subwindow") << QStringLiteral("manyWindows_rects.qml") << false << false;
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QTest::newRow("image,toplevel,sharing") << QStringLiteral("manyWindows_image.qml") << true << true;
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QTest::newRow("image,subwindow,sharing") << QStringLiteral("manyWindows_image.qml") << false << true;
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QTest::newRow("dftext,toplevel,sharing") << QStringLiteral("manyWindows_dftext.qml") << true << true;
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QTest::newRow("dftext,subwindow,sharing") << QStringLiteral("manyWindows_dftext.qml") << false << true;
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QTest::newRow("ntext,toplevel,sharing") << QStringLiteral("manyWindows_ntext.qml") << true << true;
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QTest::newRow("ntext,subwindow,sharing") << QStringLiteral("manyWindows_ntext.qml") << false << true;
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QTest::newRow("rects,toplevel,sharing") << QStringLiteral("manyWindows_rects.qml") << true << true;
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QTest::newRow("rects,subwindow,sharing") << QStringLiteral("manyWindows_rects.qml") << false << true;
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}
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struct ShareContextResetter {
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public:
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~ShareContextResetter() { QSGContext::setSharedOpenGLContext(0); }
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};
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void tst_SceneGraph::manyWindows()
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{
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QFETCH(QString, file);
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QFETCH(bool, toplevel);
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QFETCH(bool, shared);
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QOpenGLContext sharedGLContext;
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ShareContextResetter cleanup; // To avoid dangling pointer in case of test-failure.
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if (shared) {
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sharedGLContext.create();
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QSGContext::setSharedOpenGLContext(&sharedGLContext);
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}
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QScopedPointer<QWindow> parent;
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if (!toplevel) {
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parent.reset(new QWindow());
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parent->resize(200, 200);
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parent->show();
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}
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ScopedList <QQuickView *> views;
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const int COUNT = 4;
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QImage baseLine;
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for (int i=0; i<COUNT; ++i) {
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views << createView(file, parent.data(), (i % 2) * 100, (i / 2) * 100, 100, 100);
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}
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for (int i=0; i<COUNT; ++i) {
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QQuickView *view = views.at(i);
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QTest::qWaitForWindowExposed(view);
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QImage content = view->grabWindow();
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if (i == 0) {
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baseLine = content;
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QVERIFY(containsSomethingOtherThanWhite(baseLine));
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} else {
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QVERIFY(compareImages(content, baseLine));
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}
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}
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// Wipe and recreate one (scope pointer delets it...)
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delete views.takeLast();
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QQuickView *last = createView(file, parent.data(), 100, 100, 100, 100);
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QTest::qWaitForWindowExposed(last);
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views << last;
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QVERIFY(compareImages(baseLine, last->grabWindow()));
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// Wipe and recreate all
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qDeleteAll(views);
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views.clear();
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for (int i=0; i<COUNT; ++i) {
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views << createView(file, parent.data(), (i % 2) * 100, (i / 2) * 100, 100, 100);
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}
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for (int i=0; i<COUNT; ++i) {
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QQuickView *view = views.at(i);
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QTest::qWaitForWindowExposed(view);
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QImage content = view->grabWindow();
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QVERIFY(compareImages(content, baseLine));
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}
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}
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#include "tst_scenegraph.moc"
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QTEST_MAIN(tst_SceneGraph)
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